Leaves changing color somewhat quickly

Anyone know if this is something I should be concerned about? This is only happening to a few leaves but it happened within a few days. Some sort of deficiency or toxicity? Indoor under a mars hydro ts1000. FF Ocean forest soil. 5 gallon pot. Week 5 flower. Only one of 3 plants doing this. Thanks in advance.
 

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Tracker

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Is it only happening on newer upper leaves?

What are nutrients, feed/water sched, ppm/ec, pH, RH, temps? How close do you have the light?
 
Magnesium deficiency
I use FF trio nutes but haven't in awhile because of the nitrogen toxicity I was having. Gave the past few weeks of just water and no nutes (probably 4 weeks). I know ff big bloom nutes has very very little nitrogen in it and is a relatively gentle nute compared to the other 2. Think that will have enough magnesium in it? Or should I consider picking up some Cal/Mag?
 
If you haven’t applied nutrients it’s time
Yeah I've taken a few weeks off of giving her nutes because there was some nitrogen toxicity going on. Gonna go back to giving ff big bloom I think. Tiger Bloom has some extra nitrogen in it and is kinda hot. Trying to avoid more nitrogen problems. First indoor grow so I expected to run into some newbie problems. Everything else is going pretty well though. Just this one plant has been having problems.
 

hotrodharley

Well-Known Member
I use FF trio nutes but haven't in awhile because of the nitrogen toxicity I was having. Gave the past few weeks of just water and no nutes (probably 4 weeks). I know ff big bloom nutes has very very little nitrogen in it and is a relatively gentle nute compared to the other 2. Think that will have enough magnesium in it? Or should I consider picking up some Cal/Mag?
You need cal mag. But you can foliar spray UNSCENTED epsom salts 1 tablespoon per gallon of water. It takes it up very well. Important it’s unscented. Buy it any pharmacy.
 
You need cal mag. But you can foliar spray UNSCENTED epsom salts 1 tablespoon per gallon of water. It takes it up very well. Important it’s unscented. Buy it any pharmacy.
I knew I need Cal/Mag. Should have listened to my gut early on. But, I read some misinformation on some forums saying ff trio had enough. Luckily, Cal/Mag+ is 50% off on Amazon right now :hump: It'll be good to hit the other 3 girls with some also. Cheers
 
And do it now while you’re waiting for the cal mag. Then cal mag can be sprayed foliar as well and I’d suggest doing it when it arrives.

https://www.botanicare.com/faqs/can-i-foliar-spray-with-cal-mag-plus/
All right. So I did both. The epsom spray and then watered it with the Cal/Mag+ and sprayed it as well. How quickly should I expect to see any sort of results (lessening of the color change on other leaves, etc). Some of the leaves were definitely changing noticeably by the day. Thanks again for the help!
 

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